chore(): final fixes for 5.2.0 release (angular#2085)

* Reworking performance a bit more
* Perf documentation
* Doc path should be optional
* Build tests for ng 7 & 8
* Handle different formats for .firebaserc and firebase.json
* Make schematic deps peers by install deps and devDeps in ngAdd
* Upgrading typescript
* Angular Package Manager changes and side effects
* Make perf lazy and fix both perf & messaging on Node

chore(): final fixes for 5.2.0 release (angular#2085)

* Reworking performance a bit more
* Perf documentation
* Doc path should be optional
* Build tests for ng 7 & 8
* Handle different formats for .firebaserc and firebase.json
* Make schematic deps peers by install deps and devDeps in ngAdd
* Upgrading typescript
* Angular Package Manager changes and side effects
* Make perf lazy and fix both perf & messaging on Node

chore(): final fixes for 5.2.0 release (angular#2085)

* Reworking performance a bit more
* Perf documentation
* Doc path should be optional
* Build tests for ng 7 & 8
* Handle different formats for .firebaserc and firebase.json
* Make schematic deps peers by install deps and devDeps in ngAdd
* Upgrading typescript
* Angular Package Manager changes and side effects
* Make perf lazy and fix both perf & messaging on Node

Cleaning up versions a bit

Derp, still running on travis

Initialize perf monitoring to get auto-collection

fix(): FirebaseApp Class should not implement app.App (angular#2060)

While giving us a bit more type safety in development, implementing
app.App allows the Firebase JS SDK to break our builds in minor
releases. Which has bit us more than once.

I do not believe this is worth keeping around any longer.

Fixes angular#2059

chore(): Changelog for 5.1.1 and 5.1.2 (angular#2022)

Add StorageBucket injection token to storage docs (angular#1958)

5.1 release: support Firebase 5.5, multi-tab sync, function region se…

…lection, and Angular 7 (angular#1920)

* feat(afs): Support Firebase 5.5 and Firestore PersistenceSettings

* chore(): Now that app types are mostly fixed, pull from those

* chore(): Changelog entry for 5.1

* chore(): Use PersistenceSettings from interfaces, also fix types in firestore.ts

* fix(afs): Fix constructor ordering so this isn't a break

* feat(functions): Support region configuration via FunctionsRegionToken

* chore(): Changelog entry for region selection

* chore(): Support Angular 7 without peer dependency warnings

* chore(): Changelog for Angular 7